almccon/.block

## .block
license: gpl-3.0

## README.md

      
    Raw
  

              README.md
            
          
    This example uses d3.behavior.zoom with SVG transforms for map panning and zooming.
forked from mbostock's block: Map Pan & Zoom I

  
## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

svg {
  background: #eee;
}

.sphere {
  fill: #fff;
}

.land {
  fill: #000;
}

.boundary {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

.overlay {
  fill: none;
  pointer-events: all;
}

</style>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<body>
<script>


var width = window.innerWidth;
    height = window.innerHeight;

var projection = d3.geo.mercator()
    .translate([width / 2, height / 2])
    .scale((width - 1) / 2 / Math.PI);

var zoom = d3.behavior.zoom()
    .scaleExtent([1, 8])
    .on("zoom", zoomed);

var path = d3.geo.path()
    .projection(projection);

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height)
  .append("g");

var g = svg.append("g");

svg.append("rect")
    .attr("class", "overlay")
    .attr("width", width)
    .attr("height", height);

svg
    .call(zoom)
    .call(zoom.event);

d3.json("https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/world-50m.json", function(error, world) {
  if (error) throw error;

  g.append("path")
      .datum({type: "Sphere"})
      .attr("class", "sphere")
      .attr("d", path);

  g.append("path")
      .datum(topojson.merge(world, world.objects.countries.geometries))
      .attr("class", "land")
      .attr("d", path);

  g.append("path")
      .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
      .attr("class", "boundary")
      .attr("d", path);
});

function zoomed() {
  g.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
}

d3.select(self.frameElement).style("height", height + "px");

</script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	svg {
	background: #eee;
	}

	.sphere {
	fill: #fff;
	}

	.land {
	fill: #000;
	}

	.boundary {
	fill: none;
	stroke: #fff;
	stroke-linejoin: round;
	stroke-linecap: round;
	vector-effect: non-scaling-stroke;
	}

	.overlay {
	fill: none;
	pointer-events: all;
	}

	</style>
	<script src="//d3js.org/d3.v3.min.js"></script>
	<script src="//d3js.org/topojson.v1.min.js"></script>
	<body>
	<script>


	var width = window.innerWidth;
	height = window.innerHeight;

	var projection = d3.geo.mercator()
	.translate([width / 2, height / 2])
	.scale((width - 1) / 2 / Math.PI);

	var zoom = d3.behavior.zoom()
	.scaleExtent([1, 8])
	.on("zoom", zoomed);

	var path = d3.geo.path()
	.projection(projection);

	var svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height)
	.append("g");

	var g = svg.append("g");

	svg.append("rect")
	.attr("class", "overlay")
	.attr("width", width)
	.attr("height", height);

	svg
	.call(zoom)
	.call(zoom.event);

	d3.json("https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/world-50m.json", function(error, world) {
	if (error) throw error;

	g.append("path")
	.datum({type: "Sphere"})
	.attr("class", "sphere")
	.attr("d", path);

	g.append("path")
	.datum(topojson.merge(world, world.objects.countries.geometries))
	.attr("class", "land")
	.attr("d", path);

	g.append("path")
	.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
	.attr("class", "boundary")
	.attr("d", path);
	});

	function zoomed() {
	g.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
	}

	d3.select(self.frameElement).style("height", height + "px");

	</script>